20052809

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:238

約数の個数: 32

約数和(自身を含む): 26208000

約数和(自身を除く): 6155191

約数列:

[1, 7, 17, 19, 49, 119, 133, 181, 323, 343, 833, 931, 1267, 2261, 3077, 3439, 5831, 6517, 8869, 15827, 21539, 24073, 58463, 62083, 110789, 150773, 168511, 409241, 1055411, 1179577, 2864687, 20052809]

約数ペア:

[(1, 20052809), (7, 2864687), (17, 1179577), (19, 1055411), (49, 409241), (119, 168511), (133, 150773), (181, 110789), (323, 62083), (343, 58463), (833, 24073), (931, 21539), (1267, 15827), (2261, 8869), (3077, 6517), (3439, 5831)]